Merge branch '6.4' into 7.0

* 6.4:
  [Messenger] Revert "Resend failed retries back to failure transport "
  [Config][Messenger][Security] Don't turn deprecations into exceptions when unserializing
  [FrameworkBundle] Merge test from 5.4

Author: fabpot

Firewall/ContextListener.php

@@ -256,7 +256,7 @@ private function safelyUnserialize(string $serializedToken): mixed
         $token = null;
         $prevUnserializeHandler = ini_set('unserialize_callback_func', __CLASS__.'::handleUnserializeCallback');
         $prevErrorHandler = set_error_handler(function ($type, $msg, $file, $line, $context = []) use (&$prevErrorHandler) {
-            if (__FILE__ === $file) {
+            if (__FILE__ === $file && !\in_array($type, [\E_DEPRECATED, \E_USER_DEPRECATED], true)) {
                 throw new \ErrorException($msg, 0x37313BC, $type, $file, $line);
             }